34results about How to "Prevent hanging on the wall" patented technology

The invention provides a raw meal homogenization device for cement production, comprising: a raw meal storehouse, a raw meal outlet and a motor; a set of raw meal outlets is provided at the bottom of the raw meal storehouse; the inside bottom of the raw meal storehouse is fixed A group of decompression cones is connected; multiple groups of the aeration boxes are evenly arranged on the inner wall of the raw meal storage; a set of the rotary feeders is axially connected to the top of the raw meal storage; the left and right sides of the aeration box are Each side is provided with a set of power air pressure chambers and a set of anti-wall air pressure chambers; both outer sides of the inflatable box are provided with a layer of the synthetic fiber mixed polyester air-permeable layer. Setting the bottom of the raw meal storehouse into a conical shape and using a conical decompression cone is beneficial to the collection of raw meal. At the same time, the raw meal can be homogenized again during collection to make the homogenization effect better; The inner wall of the material silo instead of the bottom of the raw material silo prevents the gap between the inflatable boxes from depositing raw material and causing compaction to affect the use.

The invention relates to an evaporation wall-type supercritical water oxidation reactor capable of directly separating salt and subcritical water. The cylinder is fixed with an upper end cover and a lower end cover; the middle part of the upper end cover is provided with a burner component which extends to the inside of the cylinder; the upper end cover is provided with a gas-phase outlet and a sewage secondary inlet; the upper part in the cylinder is fixedly provided with a shell-and-tube heat exchanger; the upper part of the cylinder is provided with a sewage primary inlet and a normal temperature sewage outlet; the cylinder is provided with a subcritical water outlet; the lower part in the cylinder is fixedly provided with a multilayer evaporation wall; a plurality of annular spaces are formed between the multilayer evaporation wall and the cylinder from top to bottom; the cylinder is sequentially provided with a plurality of evaporation wall water inlets; the upper edge of the multilayer evaporation wall is provided with an evaporation wall spherical baffle; the lower end of the burner component is fixedly provided with a burner spherical baffle; and the bottom of the lower end cover is provided with a brine outlet. The oxidation reactor effectively prevents the preheater, reactor and pipelines from blockage and corrosion, reduces the quantity of pure water used by the evaporation wall, and can reduce the reactor volume and lower the noble alloy consumption.

The invention discloses a multilevel gas-liquid two-phase separation device, which solves the problems in the existing separation device that gas-liquid separation is not thorough and carbon dioxide cannot be collected completely. Three-level separation technology is adopted by the separation device, wherein a first-level separation sieve adopts a nozzle-type structure for sieving, and a second-level separation sieve and a third-level separation sieve both adopt an eccentric funnel-type structure, so that a gas-liquid mixture can be separated as long as possible on an area as large as possible, the gas-liquid mixture is fully separated, a good separation effect is achieved, meanwhile, a three-level collection mode is adopted, gas after each level of separation is collected, and separated gas is completely collected, so that guarantee is provided for carbon dioxide drive physical simulation experiment.

The invention discloses a preparation method for preparing pyromellitic acid based on catalytic oxidation-hydrolysis-segmented crystallization. The reaction is carried out in a microchannel reactor with a catalyst coating; the reacted gas is cooled and captured by a trap, cooled and crystallized, and then centrifuged. The centrifuged mother liquor is subjected to atmospheric distillation. The residual liquid is added into the hydrolysis kettle for hydrolysis treatment; finally, the hydrolysis liquid is filtered, and the filtrate is subjected to subsection cooling crystallization, centrifugation, and vacuum drying to obtain the target product, pyromellitic acid. The method is simple to operate, and the obtained target product has a high yield.